function switchOfStuff(val) {
    var answer = "";
    // 请把你的代码写在这条注释以下

    switch (val) {
        case "a":
            answer = "apple";
            break;
        case "b":
            answer = "bird";
            break;
        case "c":
            answer = "cat";
            break;
        default:
            answer = "stuff";
            break;
    }

    // 请把你的代码写在这条注释以上
    return answer;
}

// 你可以修改这一行来测试你的代码
switchOfStuff(1);
